Question: An electrochemical process is planned where there is flow between two parallel electrodes. In order to properly design the system, an empirical correlation for the

  1. An electrochemical process is planned where there is flow between two parallel electrodes. In order to properly design the system, an empirical correlation for the mass-transfer coefficient is sought. An aqueous solution containing 0.05 M K4Fe(CN6), 0.1 M K3Fe(CN)6, and 0.5 M Na2CO3 is circulated between the electrodes. The reaction at the electrode is.

[Fe(CN6)]3- + e- [Fe(CN6)]4- E0 = 0.3704 V vs. SHE

  1. For the conditions provided, which electrode would you expect to reach the limiting current first?

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